56 lines
1.3 KiB
Batchfile
56 lines
1.3 KiB
Batchfile
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@echo off
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setlocal
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REM 源文件
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set SRC=odm_orthophoto.tif
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REM 中间文件：去掩膜 + 保留 4 波段
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set TMP1=tmp_nomask.tif
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REM 中间文件：gdalwarp 处理透明通道
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set TMP2=tmp_nomask_alpha.tif
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REM 最终输出文件（性能优化：缩放 + 压缩）
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set FINAL=clean_no_mask_optimized.tif
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REM 配置参数
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REM -tr 0.25x 分辨率控制（0.25 倍像素，或者每个像素大小扩大4倍），视你项目需要可调
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REM -co 压缩参数：LZW 是无损压缩方式，TILED=YES 支持分块加载
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REM -r average 使用平均值重采样可保持图像质量
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echo [1/4] gdal_translate：去除掩膜并保留RGBA四波段...
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gdal_translate -b 1 -b 2 -b 3 -b 4 -mask none -co PHOTOMETRIC=RGB -co ALPHA=YES %SRC% %TMP1%
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if errorlevel 1 (
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echo ❌ gdal_translate 失败
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exit /b 1
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)
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echo [2/4] gdalwarp：强制生成 Alpha 通道...
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gdalwarp -dstalpha %TMP1% %TMP2%
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if errorlevel 1 (
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echo ❌ gdalwarp 失败
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exit /b 1
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)
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echo [3/4] gdalwarp：降采样并启用压缩优化...
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gdalwarp ^
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-r average ^
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-tr 2 2 ^
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-co COMPRESS=LZW ^
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-co TILED=YES ^
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-co PHOTOMETRIC=RGB ^
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-co ALPHA=YES ^
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%TMP2% %FINAL%
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if errorlevel 1 (
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echo ❌ gdalwarp 压缩优化失败
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exit /b 1
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)
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echo [4/4] 清理临时文件...
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del %TMP1%
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del %TMP2%
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echo ✅ 完成！优化后的 GeoTIFF 已生成：%FINAL%
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endlocal
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pause
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